{"id":"GHSA-9gqj-5w7c-vx47","summary":"Anthropic Sandbox Runtime Incorrectly Implemented Network Sandboxing ","details":"Due to a bug in sandboxing logic, `sandbox-runtime` did not properly enforce a network sandbox if the sandbox policy did not configure any allowed domains. This could allow sandboxed code to make network requests outside of the sandbox. A patch for this was released in v0.0.16. \n\nThank you to https://github.com/bendrucker for reporting this issue!","aliases":["CVE-2025-66479"],"modified":"2025-12-05T12:42:56.950316Z","published":"2025-12-04T16:55:06Z","database_specific":{"cwe_ids":["CWE-693"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2025-12-04T16:55:06Z","nvd_published_at":"2025-12-04T21:16:09Z"},"references":[{"type":"WEB","url":"https://github.com/anthropic-experimental/sandbox-runtime/security/advisories/GHSA-9gqj-5w7c-vx47"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66479"},{"type":"WEB","url":"https://github.com/anthropic-experimental/sandbox-runtime/commit/bea2930cc1db9c73a1b15acf6dc19c5261aec1f3"},{"type":"PACKAGE","url":"https://github.com/anthropic-experimental/sandbox-runtime"}],"affected":[{"package":{"name":"@anthropic-ai/sandbox-runtime","ecosystem":"npm","purl":"pkg:npm/%40anthropic-ai/sandbox-runtime"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.16"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-9gqj-5w7c-vx47/GHSA-9gqj-5w7c-vx47.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}